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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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109
dom/base/test/unit/test_normalize.js Normal file
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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
function run_test()
{
/*
* NOTE: [i] is not allowed in this test, since it's done via classinfo and
* we don't have that in xpcshell; the workaround is item(i). Suck.
*/
init();
test_element();
// more tests would be nice here (such as for documents), but the primary
// uses of Node.normalize() are in test_element; stuff beyond this is either
// unimplemented or is unlikely to be used all that much within a browser
// DOM implementation
}
// TEST CODE
var doc; // cache for use in all tests
function init()
{
doc = ParseFile("empty_document.xml");
}
function test_element()
{
var x = doc.createElement("funk");
// one empty Text node
x.appendChild(doc.createTextNode(""));
do_check_eq(x.childNodes.length, 1);
x.normalize();
do_check_eq(x.childNodes.length, 0);
// multiple empty Text nodes
x.appendChild(doc.createTextNode(""));
x.appendChild(doc.createTextNode(""));
do_check_eq(x.childNodes.length, 2);
x.normalize();
do_check_eq(x.childNodes.length, 0);
// empty Text node followed by other Text node
x.appendChild(doc.createTextNode(""));
x.appendChild(doc.createTextNode("Guaraldi"));
do_check_eq(x.childNodes.length, 2);
x.normalize();
do_check_eq(x.childNodes.length, 1);
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
// Text node followed by empty Text node
clearKids(x);
x.appendChild(doc.createTextNode("Guaraldi"));
x.appendChild(doc.createTextNode(""));
do_check_eq(x.childNodes.length, 2);
x.normalize();
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
// Text node followed by empty Text node followed by other Node
clearKids(x);
x.appendChild(doc.createTextNode("Guaraldi"));
x.appendChild(doc.createTextNode(""));
x.appendChild(doc.createElement("jazzy"));
do_check_eq(x.childNodes.length, 3);
x.normalize();
do_check_eq(x.childNodes.length, 2);
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
do_check_eq(x.childNodes.item(1).nodeName, "jazzy");
// Nodes are recursively normalized
clearKids(x);
var kid = doc.createElement("eit");
kid.appendChild(doc.createTextNode(""));
x.appendChild(doc.createTextNode("Guaraldi"));
x.appendChild(doc.createTextNode(""));
x.appendChild(kid);
do_check_eq(x.childNodes.length, 3);
do_check_eq(x.childNodes.item(2).childNodes.length, 1);
x.normalize();
do_check_eq(x.childNodes.length, 2);
do_check_eq(x.childNodes.item(0).nodeValue, "Guaraldi");
do_check_eq(x.childNodes.item(1).childNodes.length, 0);
}
// UTILITY FUNCTIONS
function clearKids(node)
{
while (node.hasChildNodes())
node.removeChild(node.childNodes.item(0));
}